Motion compensated digital video signal processing
US6192080A · kind A · utility
91Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1998 |
| Grant date | Feb 20, 2001 |
| Priority date | — |
| Expiry date | Dec 4, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/577
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method determines true motion vectors associated with a sequence of images. The images include fields made up of blocks of pixels. The method selects candidate feature blocks from the blocks of pixels. The candidate feature blocks have intensity variances above a threshold indicative of texture features. Candidate feature blocks in similarly numbered adjacent field intervals are compared to determine sets of displaced frame differences parameters for each candidate feature block. The true motion vectors for each candidate feature block are determined from a minimum weighted score derived from the difference parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.